1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -passes='bdce,sroa<preserve-cfg>,bdce' -S | FileCheck %s --check-prefixes=CHECK,CHECK-PRESERVE-CFG
3 ; RUN: opt < %s -passes='bdce,sroa<modify-cfg>,bdce' -S | FileCheck %s --check-prefixes=CHECK,CHECK-MODIFY-CFG
5 ; SROA fails to rewrite allocs but does rewrite some phis and delete
6 ; dead instructions. Ensure that this invalidates analyses required
9 target datalayout = "e-m:e-i64:64-n32:64"
10 target triple = "powerpc64le-grtev4-linux-gnu"
12 %class.b = type { i64 }
14 declare void @D(ptr sret(%class.b), ptr dereferenceable(32)) local_unnamed_addr
16 ; Function Attrs: nounwind
17 define void @H(ptr noalias nocapture readnone, [2 x i64], ptr %ptr, i32 signext %v, i64 %l, i64 %idx, ptr nonnull dereferenceable(32) %ptr2) {
19 ; CHECK-NEXT: [[TMP3:%.*]] = alloca [[CLASS_B:%.*]], align 8
20 ; CHECK-NEXT: [[TMP4:%.*]] = extractvalue [2 x i64] [[TMP1:%.*]], 1
21 ; CHECK-NEXT: switch i64 [[TMP4]], label [[TMP6:%.*]] [
22 ; CHECK-NEXT: i64 4, label [[FOO:%.*]]
23 ; CHECK-NEXT: i64 5, label [[TMP5:%.*]]
26 ; CHECK-NEXT: br label [[TMP12:%.*]]
28 ; CHECK-NEXT: [[TMP7:%.*]] = icmp ugt i64 [[TMP4]], 5
29 ; CHECK-NEXT: br i1 [[TMP7]], label [[TMP8:%.*]], label [[TMP12]]
31 ; CHECK-NEXT: [[TMP9:%.*]] = load i8, ptr inttoptr (i64 4 to ptr), align 4
32 ; CHECK-NEXT: [[TMP10:%.*]] = icmp eq i8 [[TMP9]], 47
33 ; CHECK-NEXT: [[TMP11:%.*]] = select i1 [[TMP10]], i64 5, i64 4
34 ; CHECK-NEXT: br label [[TMP12]]
36 ; CHECK-NEXT: [[TMP13:%.*]] = phi i64 [ 4, [[TMP5]] ], [ [[TMP11]], [[TMP8]] ], [ 4, [[TMP6]] ]
37 ; CHECK-NEXT: [[TMP14:%.*]] = icmp ne i64 [[TMP4]], 0
38 ; CHECK-NEXT: [[TMP15:%.*]] = icmp ugt i64 [[TMP4]], [[TMP13]]
39 ; CHECK-NEXT: [[TMP16:%.*]] = and i1 [[TMP14]], [[TMP15]]
40 ; CHECK-NEXT: br i1 [[TMP16]], label [[TMP17:%.*]], label [[A_EXIT:%.*]]
42 ; CHECK-NEXT: [[TMP18:%.*]] = tail call ptr @memchr(ptr [[PTR:%.*]], i32 signext [[V:%.*]], i64 [[L:%.*]])
43 ; CHECK-NEXT: [[TMP19:%.*]] = icmp eq ptr [[TMP18]], null
44 ; CHECK-NEXT: [[TMP20:%.*]] = sext i1 [[TMP19]] to i64
45 ; CHECK-NEXT: br label [[A_EXIT]]
47 ; CHECK-NEXT: [[TMP21:%.*]] = phi i64 [ -1, [[TMP12]] ], [ [[TMP20]], [[TMP17]] ]
48 ; CHECK-NEXT: [[TMP22:%.*]] = inttoptr i64 0 to ptr
49 ; CHECK-NEXT: [[TMP23:%.*]] = sub nsw i64 [[TMP21]], [[TMP13]]
50 ; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 32, ptr nonnull [[TMP3]])
51 ; CHECK-NEXT: [[TMP24:%.*]] = icmp ult i64 [[TMP23]], 2
52 ; CHECK-NEXT: br i1 [[TMP24]], label [[G_EXIT:%.*]], label [[TMP25:%.*]]
54 ; CHECK-NEXT: [[TMP26:%.*]] = getelementptr inbounds i8, ptr [[TMP22]], i64 [[IDX:%.*]]
55 ; CHECK-NEXT: [[TMP27:%.*]] = icmp eq ptr [[TMP26]], null
56 ; CHECK-NEXT: br i1 [[TMP27]], label [[TMP28:%.*]], label [[TMP29:%.*]]
58 ; CHECK-NEXT: unreachable
60 ; CHECK-NEXT: call void @D(ptr nonnull sret([[CLASS_B]]) [[TMP3]], ptr nonnull dereferenceable(32) [[PTR2:%.*]])
61 ; CHECK-NEXT: br label [[G_EXIT]]
63 ; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 32, ptr nonnull [[TMP3]])
64 ; CHECK-NEXT: br label [[FOO]]
66 ; CHECK-NEXT: ret void
68 %3 = alloca %class.b, align 8
69 %.sroa.0 = alloca i64, align 8
70 store i64 0, ptr %.sroa.0, align 8
71 %4 = extractvalue [2 x i64] %1, 1
72 switch i64 %4, label %6 [
81 %7 = icmp ugt i64 %4, 5
82 br i1 %7, label %8, label %12
85 %9 = load i8, ptr inttoptr (i64 4 to ptr), align 4
86 %10 = icmp eq i8 %9, 47
87 %11 = select i1 %10, i64 5, i64 4
91 %13 = phi ptr [ %.sroa.0, %5 ], [ %.sroa.0, %8 ], [ %.sroa.0, %6 ]
92 %14 = phi i64 [ 4, %5 ], [ %11, %8 ], [ 4, %6 ]
93 %15 = icmp ne i64 %4, 0
94 %16 = icmp ugt i64 %4, %14
96 br i1 %17, label %18, label %a.exit
99 %19 = tail call ptr @memchr(ptr %ptr, i32 signext %v, i64 %l)
100 %20 = icmp eq ptr %19, null
101 %21 = sext i1 %20 to i64
105 %22 = phi i64 [ -1, %12 ], [ %21, %18 ]
106 %23 = load ptr, ptr %13, align 8
107 %24 = sub nsw i64 %22, %14
108 call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %3)
109 %25 = icmp ult i64 %24, 2
110 br i1 %25, label %G.exit, label %26
113 %27 = getelementptr inbounds i8, ptr %23, i64 %idx
114 %28 = icmp eq ptr %27, null
115 br i1 %28, label %29, label %30
121 call void @D(ptr nonnull sret(%class.b) %3, ptr nonnull dereferenceable(32) %ptr2)
125 call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3)
132 ; Function Attrs: nounwind readonly
133 declare ptr @memchr(ptr, i32 signext, i64) local_unnamed_addr
135 ; Function Attrs: argmemonly nounwind
136 declare void @llvm.lifetime.start.p0(i64, ptr nocapture)
138 ; Function Attrs: argmemonly nounwind
139 declare void @llvm.lifetime.end.p0(i64, ptr nocapture)
140 ;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
141 ; CHECK-MODIFY-CFG: {{.*}}
142 ; CHECK-PRESERVE-CFG: {{.*}}